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    API圓螺紋油管接頭上扣與拉伸過(guò)程的有限元應(yīng)力分析

    Finite Element Stress Analysis of API Round Connections Under Make-up Torque and Axial Load

    • 摘要: 抗滑脫和抗粘扣是衡量API圓螺紋油管使用性能的兩個(gè)重要指標(biāo)。滿足API標(biāo)準(zhǔn)的圓螺紋油管在使用過(guò)程中仍然存在粘扣甚至滑脫等事故。通過(guò)對(duì)API圓螺紋油管上扣與拉伸過(guò)程的有限元應(yīng)力分析,探討了影響螺紋接頭抗滑脫強(qiáng)度和抗粘扣性能的主要因素,并提出了相應(yīng)的改進(jìn)措施。

       

      Abstract: The anti-pullout and anti-gluing are important indices for valuing the connection performance of API round tubing. Although satisfying applicable API specification, the tubing may still being operating with troubles like pullout and gluing. Finite element stress analysis is conducted in this paper under the conditions of make-up torque and axial tension load. The complications affecting the resistance against gluing and pullout of threaded connections are investigated, based on which, countermeasure are proposed. The said analysis conclusion may be used as a theoretical guide to enhancing API tubing performance.

       

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